thanks for the replies
i know what the 5450 is, it was bought years ago to replace a integrated hd3000 on a old amd mainboard and served its purpose rather well, still alive and kicking, not much people would have expected it to offer any form of gameplay on gta v but it worked, could steal a couple cards and dodge a guy shooting missiles from a plane comming from fort zancudo
as i mentioned, i installed it in the pc while i decided what to buy
i couldn't play with those framerates when compared with the ps3 so i installed again the r7 250, in 1360x768 it keeps around 30 fps, but cpu is almost maxed out already, it have to play with textures and other settings to get better fps and also stop the sudden disappearing buildings and textures, i thought that it was only a thing on ps3
what has me worried of buying the 650 ti is the 1 gb of ram, for a game like this, it is not much, in fact it seems too little, also since it is a really old gpu, well, driver support should be about to end, nvidia supports gpus for a long time but for how long?
the price is a big factor, it is almost 100 dollars here, the gtx 1050 is 140 dollars, i can't find a 750ti locally at the moment but is as expensive as the 1050, perhaps 5 dollars less if i'm lucky
about the ub hub, i could, yes, but is a bit unpractical, however i think it will be like this, very few decent gpus are single slot anymore, the gtx 650 ti is dual slot
in fact the r7 250 i have is single slot but the fan itself occupies part of the next slot so when i use it, i can't use the bracket in the back
i will change mainboard, cpu and ram but that will happen next year and meanwhile i can play gta v with all new dlcs, something not possible on ps3, it was abandoned in december 2015
i will try to get the money for at least the 650 ti so i can use it later with the new pc, as always it i growing pc, but a mini itx, so it limits what i can and want to do, also as always, budget is a problem
i think if the budget gets too hard, i will get the r7 350, if there is more money, the 650 ti and if i'm lucky a 1050 from msi
https://www.msi.com/Graphics-card/GeForce-GTX-1050-2G-OC.html#hero-overview
a shame that the 1050 ti costs 200 dollars here
as you see i'm limited to local stores for this build, bring parts from amazon on some cases, well, transport costs makes impossible the idea